Switch peerDependencies to Volto 18 for generator-volto alpha's/lates… #13160

Job	Run time
Core Blocks (18.x)	7m 15s
Core Blocks (20.x)	6m 52s
Core Basic (18.x)	6m 56s
Core Basic (20.x)	6m 55s
Core Blocks - Listing (18.x)	5m 29s
Core Control Panels (18.x)	3m 50s
Core Blocks - Listing (20.x)	4m 56s
Core Control Panels (20.x)	3m 52s
Core Basic - Plone 5 (18.x)	7m 16s
Core Content (18.x)	3m 23s
Core Content (20.x)	3m 25s
Coresandbox (18.x)	3m 51s
Core Volto Slate (18.x)	7m 27s
Core Volto Slate (20.x)	7m 18s
Multilingual (18.x)	3m 24s
Working Copy (18.x)	3m 37s
Project Generator (18.x)	5m 40s
Project Generator (20.x)	5m 1s
Multilingual in Seamless Mode (18.x)	3m 30s
Seamless Mode (18.x)	6m 55s
	1h 46m 52s

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